Gun-sight.



PATENTED OCT. 30, 1906.

R. DE L. HASBROUOK.

GUN SIGHT.

APPLICATION FILED SEPT. 19, 1905.

3 SHEETSSHEET 1.

ATTORNEYS THE NORRIS PETERS co. wnsmumon, n, c

PATENTED OCT. 30, 1906.

Nol 834.471.

R. DE L. HASBROUGK.

GUN SIGHT.

APPLICATION FILED SEPT.19, 1905.

3 SHEETSSHEET 2.

l/VVE/VTOR ATTORNEYS WITNESSES.

rsis ca. WASHINGTON. 17.:

PATENTED OCT. 30, 1906.

No. 834i471.

R. DE L. HASBROUGK.

GUN SIGHT.

APPLICATION FILED SEPT. 19, 1905.

a SHEBT-SHEET 3 Arman/5x8 1n: NORRIS pzrsns co., WASHINGTON, 11c

ENTTED STATES PATENT QEETQE.

GUN-SIGHT.

Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed September 19,1905. Serial No. 279.078.

To all whmn it may concern:

Be it known that I, RAYMOND DE LANCEY HASBROUCK, of the United StatesNavy, a citizen of the United States, and a resident of Boise, in thecounty of Ada and State of Idaho, have invented a new and ImprovedGun-Sight, of which the following is a full, clear, and exactdescription.

My invention relates to sights for guns, and more particularly to thoseapplicable to ordnance.

Its principal objects are to provide a simple, durable, convenient, andaccurate apparatus of this character.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar reference characters designatesimilar parts in all the views.

Figure 1 is a top plan view of one embodiment of my invention. Fig. 2 isa longitudinal section therethrough on the line 2 2 of Fig. 1. Fig. 3 isa transverse section on the line 3 3 of Fig. 1. Fig. 4 shows in sideelevation the range and speed scales and their as sociated arms. Fig. 5is a longitudinal sectional detail through one of the telescopes, itbeing taken on the line 5 5 of Fig. 6; and Fig. 6 is a transversesection on the line 6 6 of Fig. 5.

A portion of a gun is indicated at 10, it having a trunnion-carryingsleeve 11 and a guide-sleeve 12. Secured to the gun-sleeve is a table orsupport 13, through which is an opening to receive the stem 14 of abearing 15, which has separated lugs 16 16. The lower end of the stemextending below the table is threaded and has operating upon it nuts 17,serving to retain the bearing in place while allowing its pivotalmovement upon the table. Mounted upon the bearing is a carrier in theform of an open frame A, comprising side members 18 18, converging to asleeve 19, through which and through open ings in the bearing-lugsextend a bolt 20, about which the frame may turn, it thus be ing capableof a compound movement in both horizontal and vertical planes, theformer being by virtue of the pivoting of the bearing, while the latteris dependent upon the movement of the frame upon the said bearing. Fromthe outer ends of the side members 18 18 project substantially parallelportions 21, which, with the converging members, are connected by crossmembers 22, all these carrier members being illustrated as of I-section.At the opposite ends of one of the arm portions 21 are fixed pedestals23, in which are rectangular depressions to receive similarly-squaredportions 24 of a telescope or sigating device 25. Upon the other portion21, at its inner extremity, is a pedestal 26, mounted to turn upon theframe and having a squared depression similar to the pedestals justdescribed to receive a second telescope 27. At the opposite end of thislastnamed portion 21 is a pedestal 28, provided with opposite set-screws29, by which the angle of the telescope 27 upon the frame may be variedto permit it to be brought into parallelism with its companion. Channels30 are formed in the barrels of the telescopes and have oppositerectilinear walls 31 to receive and retain against rotary movementframes 32, which hold transverse partitions 33, preferably of glass.Caps 34 extend over the openings of the channels through the barrels toprevent accidental displacement of the partitions. Inscribed upon thepartitions are cross-lines 35, which may be conveniently ruled by aRowland machine, these giving such fine lines that they do not obscurethe target and at the same time are not subject to displacement by theconcussion of the gun.

Fixed upon the guide-sleeve is a bearing 36, preferably connected withthe table 13 by braces 36. At opposite sides of this bearing areuprights 37 and 38, in which are openings to receive a shaft 39, whichis held against longitudinal movement in one direction by a collar 40,contacting with the outer face of the upright 37. The shaft between theuprights is squared at 41, and mounted upon this squared portion forrotation with the shaft, while being longitudinally movable thereon, isa range-cam 42. The working face of the cam lies within a depression ina contact member 43, which has a stem 44 projecting through an openingin one of the cross members 22 of the frame and secured against downwarddisplacement by nuts 45, threaded upon the upper end of the stem. Thisconnection allows the cam to move the frame both vertically andlaterally, the latter turning upon its bearing and with said bearing andthe contact member rotating in the frame. The shaft may be rotated by anarm 46, squared upon its end opposite the collar 40 and traveling over asector 47,which has upon its outer face a scale 47 graduated to read inunits of length. The sector is shown as supported by brackets 47projecting from the guide-sleeve. This range-arm 46 is convenientlyretained in place upon its sector by teeth 48, formed upon the outeredge of the latter and engaged by a similarlyserrated block 49, which,as illustrated, is held in cooperation with the teeth by a spring 50.Fine adjustments may be secured by a rack 51 adjacent to the teeth 48,these teeth having meshing with them a worm 53, rotatable in a frame 52,pivoted upon the rangearm outside the block and forced toward the sectorby a spring 54. A vernier 55, carried by the frame 52, gives thereadings for these closer adjustments. The contact member of the framemay be held against the rangecam by springs 56, secured at one end toeyes 57, mounted upon the frame A, and having attached to the other endswivels 58, rotatable upon screws 59, threaded through brackets 60,projecting from the bearing 36. By turning the screws 59 the tension ofthe springs, and therefore the force of contact of the member 43 withthe cam, may be varied. Situated upon the side of the range-cam towardthe upright 30 is a cam-face 61, which is equal in extent to the rangearc and the contour of which corresponds to the curve of drift for theinitial velocity. With this camface contacts the inner end of a sleeve62, surrounding the shaft within the opening in the upright 38 andfurnishing a bearing for it. The sleeve is splined in the upright, sothat it is capable of longitudinal movement while being held againstrotation, and has projecting at one side a lug 63. In this lug is anopening to receive the stem 64 of a contact member 65, which has adepression to receive the edge of a cylindrical speed-cam 66, rotatableabout the shaft 39. Secured to the speed-cam is an arm 67, movable overa circle 68, carried upon brackets 69, projecting from the guide-sleeveand having a scale 70, graduated in degrees. Upon the periphery of thecircle are teeth 71, engaged by a toothed block 72, which, asillustrated, is pressed toward the circle-teeth by a spring 73. Thisprovides for the retention of the speed-cam in position upon its circle,as was previously described in connection with the range-cam, the fineradjustment being here unnecessary. The range-cam, speed-cam, andintermediate sleeve are forced into cooperation by a spring 74,surrounding the shaft 39 and being situated between the upright 37 andthe range-cam, this spring exerting its tension to press all thecooperating members toward the arm 46, which retains them againstdisplacement from the shaft.

In using the sight the telescopes are separately employed by thegun-pointer and guntrainer, their permanent parallelism for alladjustments of the apparatus preventing disputes between these twooperators. The adjustment for vertical correction is made by moving thearm 46 upon its scale to the proper graduation, this rotating therangecam and swinging the frame upon its bearing. To correct for speed,the arm 67 is similarly traversed over its circle. This forces thespeed-cam against the contact member upon the sleeve 62, which in turnshifts the range-cam along the squared portion of the shaft 39, and bythe engagement of said range-cam with the depression of its contactmember swings the frame A laterally with its bearing. Simultaneouslywith the movement of the range-cam the drift correction is made by thetravel of the cam-face 61 upon I the end of the sleeve 62, this varyingthe lateral movement of the frame A to the necessary extent.

In addition to the advantages which have been hereinbefore urged itshould be noted that my improved sight readily lends itself to stableand durable construction, that it is extremely simple and allows theelimination of lost motion, that the design may be readily varied tosuit different types of gun, and that speed and accuracy in makingadjustments may be attained without liability to confusion on the partof the operator.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A gun-sight comprising a support, a bearing membermounted upon the support, a carrier mounted for vertical and horizontalmovement on the bearing member, a sighting device attached to thecarrier, a cam for imparting vertical movement to the carrier, and meansfor constraining the cam to follow the horizontal movement of thecarrier.

2. A gun-sight comprising a support, a bearing member pivoted upon thesupport, a carrier mounted for vertical and horizontal movement upon thebearing member, a telescope fixed to the carrier, a second telescopeattached to said carrier, one of the telescopes being adjustable wherebythey may be maintained in parallelism with each other.

3. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft j ournaled inproximity to the carrier, a cam mounted upon the shaft and cooperatingwith the carrier, and means for constraining the cam to follow thehorizontal movement of the carrier.

4. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft j ournaled inproximity to the carrier, a cam mounted upon the shaft and cooperatingwith the carrier, means for constraining the cam to follow thehorizontal movement of the carrier, and a spring for forcing the carriertoward the cam.

5. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a

"'cam'mova'ble longitudinally upon the shaft and cooperating with thecarrier, a sleeve surrounding the shaft and coacting with the cam, and asecond cam cooperating with the opposite end of the sleeve to that firstnamed.

7. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft journaled inproximity to the carrier, a cam movable longitudinally upon the shaftand cooperating with the carrier, a sleeve surrounding the shaft andcoacting with the cam, a contact member provided with a depression andbeing pivoted upon the sleeve, and a cam extending into the contactmember depression.

8. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft j ournaled inproximity to the carrier, a cam movable longitudinally upon the shaftand cooperating with the carrier, a sleeve surrounding the shaft andcoacting with the cam, a second cam cooperating With the opposite end ofthe sleeve to that first named, and independent means for rotating thecams.

9. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft j ournaled inproximity to the carrier, a cam movable longitudinally upon the shaftand cooperating with the carrier, a sleeve surrounding the shaft andcoacting with the cam, a second cam cooperating with the opposite end ofthe sleeve to that first named, arms projecting from the shaft andsecond cam, and graduated members over which the arms may move.

10. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft j ournaled inproximity to the carrier, a cam movable longitudinally upon the shaftand cooperating with the carrier, a sleeve surrounding the shaft andcoacting with the r cam, a spring for forcing the sleeve and cam intocooperation, and a second cam cooperating with the opposite end of thesleeve to that first named.

11. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft journaled inproximity to the carrier, a cam movable longitudinally of the shaft andcooperating with the carrier, said cam being provided with an auxiliarycamface, and a sleeve surrounding the shaft and contacting with thecam-face.

127 A gun-sight comprising a carrier mov able in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft journaled inproximity to the carrier, and range, speed and drift cams associatedwith the shaft and acting upon the carrier.

13. A gun-sight comprising a carrier movable in horizontal and verticalplanes, a sighting device attached to the carrier, a shaft journaled inproximity to the carrier, and range. speed and drift cams associatedwith the shaft and acting upon the carrier, the drift-cam being carriedby the range-cam.

In testimony whereof I have signed my name to this specification 1n thepresence of two subscribing witnesses.

RAYMOND DE LANCEY HASBROUOK.

Witnesses:

J. C. TOWNSEND, O. D. COOPER.

